Patents by Inventor Daniel A. Krentz

Daniel A. Krentz has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Toy construction piece
    Patent number: D291101
    Type: Grant
    Filed: December 4, 1985
    Date of Patent: July 28, 1987
    Assignee: Interlego A.G.
    Inventors: Jens N. Knudsen, Daniel A. Krentz
  • Element for a toy building set
    Patent number: D335156
    Type: Grant
    Filed: November 6, 1991
    Date of Patent: April 27, 1993
    Assignee: Interlego A.G.
    Inventors: Jens N. Knudsen, Daniel A. Krentz
  • Element for a toy building set
    Patent number: D345591
    Type: Grant
    Filed: November 24, 1992
    Date of Patent: March 29, 1994
    Assignee: Interlego AG
    Inventor: Daniel A. Krentz